论文部分内容阅读
为探讨小儿间质性肺疾病病因及肺功能改变特点 ,对32例临床诊断为间质性肺炎的病儿作胸部CT、血气分析 ,其中18例做肺功能检查 ,5例做一氧化碳弥散量测定。结果显示小儿间质性肺炎病因以特发性纤维性肺泡炎为主 ;常规肺功能检查中VC、FVC、FEV1 实测值占预计值百分比平均值分别为51.3%、52.6%和80.1% ;流速—容量环测定正常 ;一氧化碳弥散量 (DLco)测定均低于预计值80 % ;脉冲振荡法呼吸阻抗测定显示R20 正常 ,R5 轻度增加 ,X5 均有不同程度减低。提示小儿间质性肺炎肺功能改变以限制性通气功能障碍为主 ,弥散量减低 ;呼吸阻抗测定中 ,X5 是检测肺间质病变新的敏感指标
In order to explore the etiology and pulmonary function changes in children with interstitial lung disease, 32 cases of clinical diagnosis of interstitial pneumonia in children with chest CT, blood gas analysis, of which 18 cases of lung function tests, 5 cases of carbon monoxide dispersion determination . The results showed that the causes of idiopathic pulmonary fibrosis were mainly idiopathic fibrosing alveolitis. The average percentages of the predicted value of VC, FVC and FEV1 in routine pulmonary function tests were 51.3%, 52.6% and 80.1%, respectively; The measurement of volume ring was normal; the measurement of carbon monoxide dispersion volume (DLco) was lower than the expected value of 80%; The pulse impedance method showed that R20 was normal, R5 was slightly increased, and X5 was reduced to some extent. Prompt pulmonary interstitial pneumonia in patients with pulmonary function changes to restrictive ventilation dysfunction based, reduced dispersion; respiratory impedance measurement, X5 is a new detection of interstitial lung disease, a sensitive indicator